Improvement in tackle-blocks for hay-elevators



UNITED STATES PATENT OEErcE.

FRANK WICKS AND F. F. FOVVLER, OF UPPER SANDUSKY, OHIO.

`IMPROVEMENT IN `TAKLE-BLOCKS FOR HAY-ELEVATORS.

Specification forming part of Letters Patent No. 57,610, dated August 28, 1866.

To all whom it may concern:

Be it known that we, FRANK Wiens and F. F. FOWLER, of Upper Sandusky,.in the county of Wyandot and State of Ohio, have invented certain new and useful Improvements in Tackle-Blocks for Elevatin g Hay and other articles or things; and we do hereby declare the following to be a full, clear, and exact description of the construction and operation of the same, reference being had to the accompanying drawings, making a part of this specification, in which- Figure l represents a perspective view of. the tackle-block. Fig. 2 represents a section through the same.

rlhe dust and grit that are thrown out in handling hay and other vegetable matter, as well as the exposure of the tackle in such out-ot'- door uses as stacking or storing hay, cut and chafe the hoisting-tackle to such a degree as to make it not only an expensive article, but renders it often inoperative in the midst of the season, when its use is most important.

We find in practice that the sheave of the block is best made of iron, though wood may be used; but when made of iron it is very hard on the ropes, cutting, chating, and wearing them out very fast. When of wood they are liable to Warp or crack by exposure to the weather, and not as 'reliable as implements of agriculture or husbandry should be where certain work must be done at a certain season and in a very brief period of time, and when delays would be fatal to the saving of the crop in good condition.

After much experience and practice in the use of machinery and power for elevating hay in building stacks or storing it under cover, we'have discovered an efficient, cheap, and durable way of constructing and using hoist ing-tackle so as to makeit entirely reliable and economical; and our invention consists in covering therim of the sheave with a composition or alloy of metal, of which lead is a material basis orconstituent. With sucha sheave we use an oiled or greased rope, andthe ei'ect is that the rope becomes perfectly'glazed or covered by the lead and oil, (which are the elements of which paint is made,) and-rendered durable and efficient in resisting wear as well as the bad effect of exposure to the clements.

To enable others skilled in the art to make and use our invention, we will proceed to describe the same with reference to the drawings.

Arepresents the outside or frame of a block, which may be made of wood and in any of the welhknown ways.

B is a sheave, which we prefer to make of iron or other hard metal, with the groove, or that part of it on, over, or against which tlierope or ropes pass, covered with a composition or alloy of metals which are softer than iron, such as lead, bismuth, tin, zinc, antimeny, or any other composition of which lead is an ingredient, as shown at a a.

lith such a sheave we use a rope saturated, to a greater or less degree, with linseed-oil by preference, or other oils or fatty or greasy matter. t

The oil and lead or zinc, being the materials ot' which paint is made, when the metals have become oxidized or reduced to animpalpable powder, they act in a great degree in forming a glazing or covering upon the rope, rendering it water-proof, yet pliable; and thus, not having its strands unequally stretched or contracted, it will not chafe, cut, or wear out, as a rope run over an iron or wooden sheave would do, if even it were oiled, as it it would not nd in either of those materials the other element or constituent ot' what, when united with the oil, becomes paint, and that of the best kind, being mineral paint.

In our case the metal itselt unites by attrition or friction to the rope, and the oil cements it into a permanent glazing or covering.

We are of course aware that ropes have been oiled to preserve them from the weather but we do not know that such oiled ropes have ever been run in contact with a soft metal or mixture of soft metals, so that it should take up by attrition or friction minute particles of the metal or alloy, and, uniting them with the oil, form an elastic semimetallic covering or glazing for such rope, to preserve it not only from wearing and chafing, but from the injury of exposure to the elements.

Having thus fully described our invention, prevent it from cutting, ehdng, and Wearing, what we claim therein as new, and desire to substantially as described. secure by Letters Patent, is- FRANK WIGKS Ahoisting-bloek the sheave of which is 00V- F. F. FOWLER. ered, Where the rope runs 1n eontzwt with 1t, with lead, or zu eompositionef lead with other Witnesses: softlnetdls, for the purpose of coating or glaz- E. A. BENEDIGT, ing,` an oiled rope when used therewith, and t0 A. S. VVORMLEY.

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